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Oxygen sensor connector V70-XC70 1998

posted by  KlausC on  Mon Aug 22 10:09 CST 2011
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last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

Modifying the computer could be a slight problem, but usually less than 2mpg from fleet average. You should be getting around 28mpg highway with factory tune, 20-22mpg around town.

The Evap system will have very little to do with MPG. You need to check the vacuum lines that go to the intake manifold, turbo, and fuel pressure regulator (on the subframe behind the engine - 2 lines). Any unmetered air will mess up your MPG. Don't forget the invisible elbow below the #1 cylinder.

Klaus
--
1967 220 belonging to C.A. lives on






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